16i fbOLOGT. 



^ Division I. BONY FISHES, 



ORDER 1. 



APODAL. 



VENRTRAL FINS WANTING. 



Some of this order are viviparous, and others oviparous ; 

 they are all exceedingly voracious, and many of them are 

 applicable to the purposes of food. 



The order contains seventeen genera. 



J. Anguilla. Eel. Head smooth, small ; nostrils tubular ; 

 aperture to the gills smallj situated behind the head or 

 pectoral Jins. 



This genus inhabits the ocean, rivers, lakes, and ponds, 

 is very voracious ; all the species are useable as food ; 

 some of the fresh water kinds often quit the water, and may 

 be found wandering in moist meadows. 



2. Muroena. Body Eel-shaped, pectoral Jins wanting, one 



spiracle on each side of the head. 



3. Synbranchus. Body Eel-shaped ; pectoral Jins wanting • 



spiracle placed beneath the neck. 



This differs from the preceding genus, in having the 



